Pump.



w, E, TAYLOR.

v Patented Aug. 27, 1918.

l/l (zZterE. 6 m ATTORNEY i r. a f

' ICE.

PUMP.

Specification of Letters Patent.

Patented Aug. 27, 1918.

Application filed March 30, 1917. Serial No. 158,687.

To all whom it may concern:

Be it known that I, WALTER E. TAYLOR, a citizen of the United States, residing at Avalon, in the county of Allegheny and State of Pennsylvania, have invented new and useful Improvements in Pumps, of which the following is a specification.

This invention relates to a pump and has for its primary object to provide a device of this character by means of which water receptacles may be readily drained.

An object of the invention is the substantial manner of forming the base and associating the same with the cylinder and the manner of arranging the passages in the base.

Besides the above my invention is distinguished in the construction of the base so that ready access may be had to the valve chambers.

With these and other objects in view the invention will be better understood from the following detail description taken in connection with the accompanying drawing wherein V Figure 1 is a side elevation of the pump.

Fig. 2 is an enlarged sectional View of the base.

Fig. 3 is a view similar to Fig. 2 looking at right angles thereto.

Fig. 4 is a top plan view of the base.

Again referring to the drawings the numeral 1 designates the cylinder in which works a piston 2 operated in any suitable manner. The lower end of the cylinder has screw threaded engagement with the base 3.

A very important feature of my invention is the construction of the base whereby liquid may be drawn into the cylinder in the movement of the piston in one direction and forced from the cylinder in the movement of the piston in the opposite direction.

A ledge B, an extension of the base 5 and spaced from the bottom of the latter, has formed therein an inlet passage 4 and an an outlet passage 5. Arranged in the chamber 6 is a ball valve 8 and a ball valve 9 is arranged in the chamber 7. Access may be readily had to the chambers by the caps 10 that has screw threaded engagement with the base. From this arrangement it will be seen that upon movement of the piston 2 in an upward direction the valve 8 will be unseated for drawing in a charge of water while the valve 9.will be forced against the seat. In the reverse travel of the piston the valve 9 will be unseated and the valve 8 seated for forcing the water from the cylinder.

From the foregoing description taken in connection with the accompanying drawing it should be apparent that I provide a very efiicient pump for the purpose intended and which may be manufactured at a relatively low cost and in which the base is separate from the cylinder so as to reduce the cost of reconstructing an old pump.

Having described my invention what I claim is In a pump including acylinder and a piston, a base closing one*end of the cylinder, a ledge formed integrally within said base and spaced from the bottom thereof by an undercut recess ommunicating with the interior of the base, said ledge being provided with a pair of inclosed valve'chambers, one

valve chamber communicating with said undercut recess by a vertical passage terminating in a valve seat and communicating by apassage with the exterior of said base, the other valve chamber having communicating therewith a passage terminating in a valve seat and communicating with the exterior of the base and a passage communicating with the interior of the base, a ball disposed within each of said chambers and seating upon the respective valve seats, the walls of said valve chambers extending entirely to the top of said ledge, and plugs threaded into the ends of said valve chambers whereby direct communication of the valve chambers with the interior of the cylinder will be prevented.

In testimony whereof I aflix my'si nature.

WALTER E. TAfiOR.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0. 

